Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Minimum ownership percentage to exercise significant influence	20.00%
Capitalized Computer Software, Amortization	$ 0
Trademarks [Member]
Finite-Lived Intangible Assets, Useful Life, Minimum	2
Intangible assets, estimated useful life, maximum	30
Patents and Developed Technologies [Member]
Finite-Lived Intangible Assets, Useful Life, Minimum	5
Intangible assets, estimated useful life, maximum	17
Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Useful Life, Minimum	5
Intangible assets, estimated useful life, maximum	16
Building [Member]
Estimated useful life, maximum	40
Machinery and Equipment [Member]
Estimated useful life, minimum	16
Estimated useful life, maximum	20